Service-pipe curb box



May 6, 1930. E. L. NUEBLING SERVICE PIPE CURB BOX Filed June 6, 1927 Emil LJYueblz'h INVENTQR,

ATTORNEYS.

Patented May 6,1930} REPAIR COMPANY, OF VANIA Application filed une 6,

This invention relates'to improvements in a curb boxes, and has for its objects to provide a box, and more particularly acover therefor, which will remain at its proper position with respect to the surface of the adj acent ground, even when the latter is subjected to freezing temperature.

A further object is to provide means asso-' ciated with the cover to rigidly clamp itin position in the extremity of the box,andat the same time, facilitate its swift and convenient removal. r

Another object is the provision of,- a cover for. curb boxes which whenapplied, will completely closethe extremity of thebox against the admission of dirt or other foreign matter. i

A still further object'is the selection of appropriate materials for'the manufacture of the various parts of the box, and cover, soas to assure at all times, convenient removal of the cover.

With the foregoing objects outlined and with other objects in view which will appear as the description proceeds, the invention consists in the novel features hereinafter described in detail, illustrated in the accompanying drawings, .and more particularly pointed out in the appended claim,

Referring to the drawings,

Fig. 1 is an elevationof the cover and looking means, removed. V a

Fig. 2 is an enlarged section of the upper extremity of the box showing the cover applied. 5 r 7 5 7 i Fig. 3 is a perspective view partly'in section of the upper part of the curb box.

Fig. 4 is a plan development of the interior of the box. 1 I

Referring to the drawings in detail, the numeral 5 indicates the body of the box provided as usual with the helical groove, 6. Internally at its upper extremity, the box is provided with two opposed spiral ribs 7, extending downwardly a comparatively short distance within the box, and terminating at their upper extremities in flanges 8 lying at the opposite sides of the box, and in the same circumferential plane,;so as to present a seat for the cover, indicated at 9.

' EMIL 1.; 'NUEBLING, 0F READING, rENnsYLvANrA .AssIGNoR1T0 READING METER sErtvIc -rrrfaconn 30x1 927.? Serial 151 .1 196,770.

V The medial central'portion of the cover is I y depressed as at 10, and is provided peripherally witha flange 11, adapted to" be' seated nnnnme, IBENNSIYLVANIA,.AQOIWQRATIQN.013 rEnnsYL- v upon the segmentalflanges 8',' constituting' a seat therefor; The cover 9fiszprovidedwcen- *trallyjwithI an aperture 12, 'receiving lthe =.;flangedportion13 of a stem 14L, the adjacent 'portion'of-which is received at the reduced lower extremity 15 of the aperture 12,; so as to limitthe downward thrustofthestem, relativeto the cover. The flange/13 and reduced portion ofthestem are oflcylindrical' form, whereas the lower extremityl there of. is .polygonal and-received within a'n open- .ing-16 of the locking 1ever-17,the extremities 'ofzwhich' latter areheadedias ea- 18, and adapted to be threaded into the-grooves definedibetween the helicalvribs or flai1ges7 during'the rotary motion thereof; The lockinglever 17 is held incpla'ce' on thestem by a locking pin 19, passeddiametrically through I a the stem, whereas the extreme upper extremi- --ty of the latter is of. polygonal form-to provide ahead 20adapted to-receivea suitable type of wrench to facilitate turning of the stem and locking'lever; Thestemis ofsuch construction as .tojpermit'lof a limited amount of play between the locking lever and the cover; a

It will be observed that the upper part of the. curb box is of uniform diameter throughout, and the external surface thereof, except 7 for the groove 6, is of plain cylindrical form,

while the cover 9 lies wholly within theexsurface of'the box without resting on the latternal dimensions of the box. This is an imter, and thus, when the surface level ofthe I ground recedes to its normal position, the top of the boxis in'its proper position, and is not raised above the surface of the ground, as frequently occurs with types of curb boxes now in use. 1

: The cover Qmay be inexpensively cast from iron, whereas the locking lever 17 is preferably of wrought iron. The'stem 14, however,

I is preferably made of'brass or some such the action of the elements. I V V For the purpose of raising or lowering the box, in cases where the level of the surround ing ground is altered, slots 21 are formed in the segmental seat flanglesS for recei-ving'a suitable flat tool to permit adjustment of the top section of the box.

removing the cover, the first operation 10 ofthe stem; when turned in theproper direc-' 'tion, isto release the tension clam ing the cover in position. Upon furtherturning of the key, an upper pressure is exerted upon'th 5 cover, which, with the assistance of tappings, will lift the lid clear of the seat fl'anges,and

equivalent material which is not afiected by free-from the box.- i From therforegoingit is believed that the construction; operation and advantagesxof I my invention maybe readily understood, and Y lamaware that changesrnay be made in the details:disclosediwithoutj departing from the spirit 01 the-inventionias expressed in the claim; V 1' V l l f What I 01 m and desire to secureby Letters Patentis: 1 7 1 In combination, a eylindrical curb box hav- 7 'ing an inner surfacez pr ovided adjacent its 7 upper end; with a cover seat and spaced opposed helical flanges extending beneath said seat, a centrallyapertured cover adapted to rest on said seat a stem extending rotatably and slidably through said aperture and havl c v ing a flange thereon resting on the upper side offthe. c0ver arms fixed" toand extending laterally from the stem a distance sufiicient r P to interengage with saidhelic'al flanges, said H arms being located a distance beneath the cover sufiicient to permit appreciable relative sliding movement between the cover and Intestimony whereofI aflix my signature.

a 'EhHL Li NUEBLING. V 

